Features | Good StretchabilityGood Thermal StabilityHigh Molecular Weight |
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| Physical | Nominal Value | Unit | Test Method |
Density / Specific Gravity | 2.14 to 2.15 | g/cm³ | ASTM D4895 |
Apparent (Bulk) Density | 0.40 to 0.55 | ASTM D4895 | |
Particle Size | 400 to 650 | µm | ASTM D4895 |
| Mechanical | Nominal Value | ||
Tensile Strength | > 25.0 | MPa | ASTM D4895 |
Tensile Elongation (Break) | > 300 | % | ASTM D4895 |
| Additional Information | Nominal Value | |
Extrusion Pressure | 12.7 to 24.5 | Internal Method |
PTFE的摩擦因数随滑动速率的增大而增大，当线速度达到0. 5一1.0m/s以上时趋于稳定;而且静摩擦因数小于动摩擦因数，将这种特性用于轴承制造，可减小其起动阻力，使之从起动到运转都十分平稳。PTFE的摩擦因数随随载荷增加而减小，当载荷达到0.8 MPa以上时趋于恒定。在高速、高载荷下，PTFE的摩擦因数低于0. 01。从超低温到PTFE熔点，
其摩擦因数几乎不变，只有在表面温度高于熔点时，摩擦因数为才急剧增大。
由于分子间引力小，PTFE的硬度低，易被其他材料磨损。但是，只要对磨材料表面粗糙度合适，可在相当程度上降低PTEF的磨损量。
